requirement
Click on the red underlined text to get to the source
... Requirements Language ...
... In order to be able to offer roaming capability, one of the
requirements is to be able to identify the user's home authentication
server. For use in roaming, this function is accomplished via the
...
... NAI MUST fulfill the ABNF in this
specification as well as the requirements specified in [RFC4013].
These requirements ...
... requirements specified in [RFC4013].
These requirements consist of the following:
o Mapping requirements ...
... requirements consist of the following:
o Mapping requirements, as specified in Section 2.1 of [RFC4013].
Mapping consists of mapping certain characters to others (such as
...
...
o Normalization requirements, as specified in Section 2.2 of
[RFC4013], are also designed to assist in comparisons.
...
... usernames used in e-mail.
Note also that the internationalization requirements for NAIs and
e-mail addresses ...
... or propagation of global routing information. Note also that there
is no requirement that the NAI represent a valid email address.
...
... Bradner, S., "Key words for use in RFCs to Indicate Requirement Levels", BCP 14, RFC 2119, March 1997. ...